The 2001 Perl Advent Calendar
On the 16th day of Advent my True Language brought to me..
Returning once again to the silly, this day's module is a toy example
of tieing to hashes. The actual problem space isn't useful at all
(well, apart to remind you all that drugs are bad, M'kay.) Here the
actual code is worth a look for anyone wanting to learn how tieing
works. In my Wax::On Wax::Off talk I stipulated that the only
effective way to get new concepts to stick is for the demonstrator to
latch them onto memorable concepts so that they'll less likely to be
forgotten. Dave has certainly picked a memorable subject and humorous
effect for his module.
The code started out from a perl.com article
that Dave Cross wrote
that explains how hash tieing works. Since then Dave has updated it as
perl has gone along. Most recently perl has gained the ability, though
interface, to tie new variables to classes
via an attribute. Dave has updated the module to provide an example of
the new (super easy) interface.
Copyright 2000-2004 Mark Fowler, all rights reserved.
This documentation may be distributed under the Academic Free License
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